Pump for wells.



No. 819,986. PATENTED MAY 8, 1906.

A. N. ELLIS. PUMP FOR WELLS.

APPLICATION FILED JUNE2.1905.'

2 SHEETS-SHEET l.

UNITED STATES PATENT OFFICE.

ARTHUR N. ELLIS, OF SAN BERNARDINO, CALIFORNIA.

PUMP FOR WELLS- Specification of Letters Patent.

Patented May 8, 1906.

Application filed June 2, 1905- Serial No. 263,462.

To all whom it may concern.-

Be it known that I, ARTHUR N. ELLIs, a citizen of Great Britain,residing at San Bernardi'no, in the county of San Bernardino and Stateof California, have invented certain new and useful Improvements inPumps for Wells, of which the following is a specification.

This invention involves improvements in that type of pumps designedparticularly for elevating liquids in oil or like wells and embodying aS111 le or plurality of water wheels or lpropellers or dischargingliquid from the we The invention embodies, primarily, a novel form ofpropeller, a single one or a number of which are carried by a suitabledrive-shaft arranged in the well-tubing, and, further, the inventionresides in special means for lubricatin the drive shaft, in specialbearings there or, and in the provision of means for protecting thebearings from sand, grit or similar foreign matter which would otherwisegrind out the bearings for the shaft, giving rise to disadvantages whichwill be obvious to those versed in the art to which the invention aertains.

For a ful escription of the invention and the merits thereof and also toacquire a knowledge of the details of construction of the means forefl'ectin the result reference is to be had to the fol owing descriptionand accompanying drawings, in which Figure 1 is a vertical sectionalview of a pump embodying one adaptation of the inventlon, the mechanismbeing shown arranged in the well-tubing in operatin order. Fi 2 is a topplan view of one of t e prope lers disposed in the well. Fig. 3 is ahorizontal sectional view taken on the line X X of Fig. 4 lookingupwardl bringing out olearl the arrangement of t e blades of the propeler. Fi 4 is a vertical sectional view showing a mo 'fied adaptation ofthe invention, the pump barrel or well-tubing being omitted. Fig. 5 is aside elevation of the bearing member receiving the lower extremity ofthe shaft of the pump mechanism.

Corresponding and like parts are referred to in the followin descriptlonand indicated in all the views 0% the drawings by the same referencecharacters.

The use of the invention obviates the necessity for digginga pit, aswill be apparent, and in carrying out the invention 1t 1s designed thatthe pump mechanism be arranged in the well-tubing 1 in the casing of thewell, said tubing forming virtually the barrel of the pump in thepractical working of the invention. The tubing 1 is provided at its uper end with a suitable lateral discharge 2 or the liquid forced upwardlytherein, and the upper extremity of the tubing is closed by a suitableplate 3, above which is a casing 4. The plate 3 is formed with asuitable bearing 5, through which passes the drive-shaft 6, the latterextending the en tire length of the tubing 1 and having the pro eller orpropellers 7 substantially attac ed thereto. The shaft 6 will be drivenby a ulle 8 or like means operably connecte wit a suitable motor, andthis-pulley 8 is preferably arranged in the casing 4 in the constructionillustrated in the drawings.

In Fig. 1 of the drawings a single pro eller 7 is carried by thedrive-shaft 6 at the ower extremity of the latter, and in thisconstruction it is designed that the drive-shaft 6 be protectedthroughout its length from the action of the sand or anyforeign mattercarried upwardly in the well under the force of the liquid beingelevated. For the above purpose it is designed to provide located in thewell-tubing 1 a pipe 9, which surrounds or incloses the shaft 6, an thispipe 9 will of course be made in a sui able number of sections, deendent u on the depth of the well and the ength of t e tubing 1. It isnecessary to provide said shaft 6 with suitable bearings at intervals inthe length of the tubing 1, and for this purpose a number ofbearing-brackets, such as indicated at 10, are employed, these bracketsembodyin a plurality of arms 10, projecting from a iub portion 10", thelatter havin an opening 11 therethrough, forming the bearing for theshaft 6. The bearing-brackets 10 are preferably of somewhat clrcularform, having rim portions 10 externally threaded, so as to be readilyconnected with the coupling-thimbles 12, by which the various sectionsof the tubing 1 are secured together, the members 10 being clampedbetween adjacent ends of the sections of said tubing. The hub portion 10of each coupling-bracket is formed with oppositely-extendmg threadedortions 13, and the ends of the sections of t e inner pipe 9 are directlattached to the extended portions 13 a oresaid. The pi e 9 within thetubin 1, which surrounds t e shaft 6, is desi e to receive a suitablelubricant, such as 0' or hard grease, so that the bearing-hub the liquiI space between the pipes ortions 10 of the various brackets 10 will ethoroughly lubricated and such portions of course rotected fully fromthe action of passing upwardly through the 9 and 1, above de scribed.The shaft 6 passes througha suitable stuffing-box 14 on the plate 3 atthe upper end of the well-tubing 1, and the sald shaft also assesthrough another stuffing-box 15 at the lowermost of the brackets 10, thelower extremity of the shaft 6 passing through the stuffing-box 15 asufficient distance to admit of read attachmentof the propeller 7thereto. T e lower extremity of the shaft 6 is reduced, as shown at 6',and received in a transverse bearing member 16, suitably supported atthe lowermost end of the tubing 1. The propeller 7 .is made of'specialconstruction and comp central openin 17 in its under side to receive thewater or otier liquid and with a plurality of outlet openings orpassages 18, extending from the hollow ortion 19 to the upper side ofthe body of tiib propeller, as shown most clearly intliedrawin s. Itwill of course be understood that the mist-opening 17 of each pro ellercarried by the shaft 6 is'l'arger than sai shaft, so that the propellersat intervals in the length of this shaft will readily receive theliquid-as it is being elevated and propel such liquid upwardly. Thepropeller 1s thus adapted to receive the water at the bottom thereof anddischarge the same at the top, and this is of no small advantage, inthat it obviates the necessity for the provision of the bottom castingon the pump, a common cap doing the work effectively. The body of thepropeller is formed with a tubular extension 20 at its upper portion,and a set-screw 21, threaded transversely into this extension, isadapted to engage the drive-shaft 6 in order to secure the propellerthereto. The 0 enings or passages 18, leading from the ho low portion 19of the body of each propeller, curve u wardly and radially thereof, sothat the liquld pro elled upwardly by each of the members 7 wi be givena swirhng motion, so as to increase the efiectlveness of the pump to-amaximum. Arranged in the hollow portion of the propeller 7 areaplurality of curved blades 22, a blade being provided for each of theoutlet passages or openin s 18 and curved to conform somewhat with t ecurvature of itsadjacent passage, as shown clearly in Fi 3 of thedrawings. The blades 22 forcib y propel and dischargethe liquid throughthe passages 18 u ward y into the space between the pipe 9 and the outertubing 1 of the mechanism.

It will be noted that the hub portions 10 of the bearing-brackets 10 areinterposed between various sections of the pi e 9, which will be termedthe oil-pi e, fbr the purposes of this description. order that a lutionof the pipe 9 and rises a hollow body of disk-like" formation, said bodybeing provided witha bricant may be fed into the uppermost secpassdownwardly into the lowermost sections, it is designed that the hubportions 10 of the various brackets 10 be formed with verticaloil-passages 23, and thusoil supplied to the space between the u permostsection of the pipe 9 and the shaft 6 y means of the oil-pipe 24,leading through the uppermost section of the pipe 9, will passdownwardly into the lower sections of the pipe,supply1ng the lubricantto the shaft-bear- 1n throughout the length of the shaft 6.

ig. 4, which illustrates a modification of the invention,v shows aconstruction of the mechanism designed to be used where a plurality ofprope dfilip wells in order to elevate the liquid. In t pipe, as shownin 1 but the various bear- -brackets 10 in t e length of the tubing 1 beindividually su plied with a lubricant and protected from the action ofthe sand and grit in the liquid by means of short oilpipes 9, one ofsaid pipes being located between the ad'acent propellers about five feetapart. Thel connect with the hub portionsof brackets 10 in a mannersimilar to that described with reference to the construction in Fig; 1,and the u per portions of the short pipes Qfiwill be closed by suitablestuffing-boxes 25, ing injury to the bearings for the sha t by theforeign matter carried upwardly by the water or liquid. It will benoted, as shown in Fig. 4, that at points where the couplings 26 areused to connect with sections of the shaft 6 the inclosing oil-pipesection will be enlarged to connect with an enlarged extended hubportion 13 of the adjacent bearingbracket 10. It will be understood thatin the construction of Fig. 4 the various short oilpipes 9* will besupplied by branch ipes of themain oil-su ply pi e 24, leading om the uper end of the we to the lowermost port1on thereof.

Having1 thus described the invention, what is claime as new is 1. In apump for wells of the type described, the combination of a well tubingor pipe, a shaft arranged therein, a Propeller or propellers carried bysaid sha t, earingrackets for the shaft well-tubing, and oil-pipessurrounding the shaft in the length thereof.

2. In a pump for wells of the type described, the combination of a welltubing or pipe, a shaft arranged therein, a ro eller or propellerscarried by said sha earingrackets for the shaft in the length of thewell-tubin and oilipes surrounding. the shaft in t e len th tiiereof,and connected with the bearingrackets therefor.

3. In a pump for wells of the type described, a well-tubing, a shaftarranged thereers 7 are necessary in very construction the shaft 6 isnotsur-- rounded throughout its length by an oilower ends of the shortpipes 9 revent 1 in the length of the in, a propeller carried by theshaft, bearing therethrough whereby the lubricant in the 10 bracketswithin the tubing and ceiving pipe surrounding the shaft and com- 5rising sections connected with the bearingrackets to rotect the bearingsthereof from the action offorei n matter elevated with the liquiddischarge cm the well, the bearingbrackets being provided withoil-passages provided lubricantwith bearings for the shaft, alubr1cant-reets in the 1pe may ass to the various brackength of t eshaft. In testimony whereof I afiix my signature in presence of twowitnesses.

ARTHUR N. ELLIS. Witnesses:

J. L. MACK, HATTIE L. BARKELEW.

